Consumers look resilient on the surface, but $4 gas was a tipping point and Costco members are filling up more often in case prices go even higher

U.S. consumers are adjusting spending habits amid rising gas prices, with Costco members filling up more frequently to avoid higher costs. Retailers like Walmart and Dollar General report resilience in spending but note cutbacks among lower-income customers, while fuel purchases at wholesale clubs show signs of stress as shoppers buy less per trip.